A sample of fourteen library catalogs, from across India, revealed that only two authors were in all fourteen: Edward Bulwer-Lytton and Sir Walter Scott. Apparently the embellished novel was popular.
In thirteen of the catalogs were Dickens, Disraeli, and Thackeray.
In twelve of the catalogs were Marie Corelli, F. Marion Crawford, Dumas, George Eliot, Charles Kingsley, Captain Frederick Marryat, G.W.M. Reynolds, and Philip Meadows Taylor.
Sir Arthur Conan Doyle was in eleven.
The figures are from the new and noteworthy, The Novel: Volume 1, History, Geography, and Culture, edited by Franco Moretti; this volume is a treasure trove of information about the history and early economics of the novel.